Home / 40,578.60-55,995.28-22,428.56

Finding the Fourth Proportional to 40,578.60, 55,995.28 and 22,428.56

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Solution

The fourth proportional to 40,578.60, 55,995.28 and 22,428.56 is: 30,949.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,578.60 : 55,995.28 = 22,428.56 : x
  2. Step 2: Convert to fraction form
    40,578.60/55,995.28 = 22,428.56/x
  3. Step 3: Cross multiply
    40,578.60x = 55,995.28 × 22,428.56
  4. Step 4: Simplify right side
    40,578.60x = 1,255,893,497.20
  5. Step 5: Solve for x
    x = 1,255,893,497.20/40,578.60
  6. Step 6: Final answer
    x = 30,949.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.